A switch allow to get either an aperture ring with click or click less for video

The aperture ring is unusually located at the front of the lens and lack some “personality”, I had several times issues when I wanted to rotate it with my eye on the visor. I was touching the focusing ring instead of the aperture ring and changed the focus by mistake. I do much prefer the Zeiss Loxia design with the aperture ring next to the body

The focusing ring is pleasing to manipulate with good dampening but could be a little bit stiffer like Zeiss Loxia ones

The rectangular lens hood (in plastic) is very nice looking but in the practice is it cumbersome to put it in your bag as it can not be stored reversed on the lens barrel

4 Conclusion

The Tokina Firin 20mm leaves me with mixed feelings

If you are lucky to get a well centred copy, you get then a pretty solid and very good lens for landscape (several users reported decentered Tokina Firin e.g. Philipp Reeve who also did review the lens had a decentered lens)

The Borders / corners are clearly less good than the centre wide open and this persist until F4, at F5.6-F8 you get consistent excellent results across the frame